BIOL 111 microbiome final paper

BIOL 111 microbiome final paper - Tim Brown T.A Carmela...

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Tim Brown T.A. Carmela Asinas November 25, 2013 Microbiome Paper Introduction: The skin of the human body harbors around a trillion bacteria at any given time. These bacteria function in a symbiotic relationship with the human body, so they can both benefit each other. While all these bacteria live on the skin, some of them only reside on specific parts of the body. The natural folds and anatomy of the skin create small regions with varying differences in habitats that some bacteria thrive in over others. As written in The Skin Microbiome , “some regions of the skin are partially occluded, such as the…toe web. These regions are higher in temperature and humidity, which encourages the growth of microorganisms that thrive in moist conditions” (Grice and Segre 2011). The webbing between the toes on humans’ feet is a unique environment where the conditions influence the growth of unique bacteria. Since there is a lot of skin occlusion, or absorption, in between the toes, it helps to create conditions that are perfect for a couple specific bacteria to thrive: “Skin occlusion results in an elevated pH, which favors the growth of Staphylococcus aureus and Streptococcus pyogenes ” (Grice and Segre 2011). These two bacteria, plus a couple others, are very capable of living in the moist webbing of the toes, and prefer these areas to other regions of skin on the body. This study of the living microorganisms goes to show how bacteria can live on any part of human skin, by adapting to the varying conditions that are present on the different body parts. There will always be the existence of bacteria on human bodies. However, by using some products containing antimicrobial agents, one can affect the bacteria that live on the skin.
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